ci: update Ubuntu version

Author: brunopulis

.github/workflows/checar-link.yml

@@ -10,11 +10,11 @@ on:
 jobs:
   check-link:
 
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-22.04
 
     steps:
     - name: Project checkout
       uses: actions/checkout@v2
     - uses: gaurav-nelson/github-action-markdown-link-check@v1
       with:
-        config-file: '.github/mlc_config.json'
+        config-file: '.github/mlc_config.json'